NEC RSC1812 Owner's Manual page 13

Heating Operation(Heat pump model only)
Press the Start/Stop button. The unit will respond with a beep.
1
Open the door on the remote control. To select Heating
2
operation, press the Operation Mode Selection button.
Each time the button is pressed, the operation mode is shifted
in the direction of the arrow.
Cooling
Close the door on the remote control.
3
Set the temperature higher than the room temperature.
The temperature can be set within a range of 16°C~30°C in
1°C increments.
Set the fan speed again with the door of the remote control
4
still closed. You can select the fan speed in four steps–low,
medium, high, or AUTO. Each time the button is pressed, the
fan speed mode is shifted.
13
Soft Dry Auto
(Heat pump model only)
To raise the temperature
To lower the temperature
Heating